OK, let's crack this. We're given 576 and our task is to multiply it by 4. Essentially, we'll be adding 576 to itself 4 times.
Step 1: 0 + 576 = 576
Step 2: 576 + 576 = 1152
Step 3: 1152 + 576 = 1728
Step 4: 1728 + 576 = 2304

So, 576*4 = 2304